Cisco Security

AUGUST 11, 2021

We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi. Encrypting files.

Ransomware 126

Ransomware DNS Encryption Backups 126

Hacker Combat

JULY 5, 2021

Further, it also matches the two variants in how the malware executes file encryption and secures command-line disputes. ” Still, unlike FiveHands and HelloKitty, the new ransomware variant relies on a Go-based packer that encrypts its C++ malicious software payload. This malicious software also utilizes Golang to steal data.

Ransomware 132

Ransomware DNS Software Encryption 132

Troy Hunt

JULY 12, 2018

The rapid adoption has been driven by a combination of ever more visible browser warnings (it was Chrome and Firefox's changes which prompted the aforementioned tipping point post), more easily accessible certificates via both Let's Encrypt and Cloudflare and a growing awareness of the risks that unencrypted traffic presents. Is it needed?

DNS 277

DNS Wireless Risk Banking 277

Security Affairs

MAY 15, 2023

“Lancefly’s custom malware, which we have dubbed Merdoor, is a powerful backdoor that appears to have existed since 2018.” A legitimate tool by Avast was installed by the attackers and used to dump LSASS memory The group was spotted using a “masqueraded version” of WinRAR to stage and encrypt files before exfiltration.

Encryption 89

Encryption DNS Phishing Malware 89

Security Affairs

NOVEMBER 9, 2020

Experts attribute the attack to a known threat actor tracked as xHunt , aka Hive0081, which was first discovered in 2018. “The Snugy backdoor uses a DNS tunneling channel to run commands on the compromised server. ” reads the analysis published by the experts.

DNS 118

DNS Accountability Government Cyber Attacks 118

Security Affairs

JUNE 18, 2020

The group was first spotted by ESET in 2018, when the experts detected a sophisticated piece of spyware, tracked as InvisiMole, used in targeted attacks in Russia and Ukraine in the previous five years. Experts also observed attackers using a DNS downloader that was designed for long-term, covert access to the target machine.

DNS 85

DNS Advertising Spyware Software 85

SecureList

OCTOBER 25, 2023

It comes equipped with a built-in TOR network tunnel for communication with command servers, along with update and delivery functionality through trusted services such as GitLab, GitHub, and Bitbucket, all using custom encrypted archives. on January 9, 2018, after hovering around $10 in 2017. As of 2023, it is trading at around $150.

Malware 107

Malware DNS Encryption Cryptocurrency 107

CyberSecurity Insiders

MARCH 21, 2021

Back in 2018, almost two-thirds of the small businesses suffered from cyber security attacks. . With a VPN like Surfshark to encrypt your online traffic and keep it protected against any security breach, your valuable data isn’t going to get compromised easily anytime soon. Protecting your data is very simple. Train your employees .

Small Business 145

Small Business Cyber Attacks VPN Backups 145

Security Affairs

JUNE 9, 2022

Other techniques employed by the APT group include DLL hijacking, Themida-packed files, and DNS tunneling to evade post-compromise detection. From 2018 to present, Aoqin Dragon has also been observed using a fake removable device as an initial infection vector. The APT has improved its malicious code over the time to avoid detection.

Malware 90

Malware DNS Encryption Education 90

Troy Hunt

JULY 21, 2021

Not only do they control the access rights to the mailbox, they also control DNS and MX records therefore they control the routing of emails. Sidenote: there's a whole other discussion about active interception of encrypted communications that may also give an employer access to this.)

Accountability 363

Accountability Data breaches Government InfoSec 363

Security Affairs

JULY 23, 2019

Attackers also noticed that systems infected with the above two families were also targeted with the RoyalDNS malware that uses DNS to communicate with the C&C server. Once executed the command the backdoor returns output through DNS.

DNS 90

DNS Malware Advertising Manufacturing 90

Security Affairs

DECEMBER 12, 2019

” The GALLIUM threat actor is active, but its activity was more intense between 2018 and mid-2019. The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points. GALLIUM is one of many ActivityGroups we see targeting telcos through SE Asia + Europe + Africa.

Telecommunications 71

Telecommunications DNS Malware Advertising 71

Security Affairs

AUGUST 8, 2018

We named this botnet “Black” due to the RC4 key value, “black”, that is used for traffic encryption in this botnet.” “This C&C server has actually been active since 6 th March 2018 but didn’t attract attention because of the low capacity of the “black” botnet at that time. Bot-B connects to Bot-A.

Malware 50

Malware DNS Encryption Banking 50

SecureList

DECEMBER 1, 2023

For most implants, the threat actor uses similar implementations of DLL hijacking (often associated with ShadowPad malware) and memory injection techniques, along with the use of RC4 encryption to hide the payload and evade detection. libssl.dll or libcurl.dll was statically linked to implants to implement encrypted C2 communications.

Malware 91

Malware Ransomware Encryption Energy and Utilities 91

Troy Hunt

SEPTEMBER 17, 2020

I want a "secure by default" internet with all the things encrypted all the time such that people can move freely between networks without ever needing to care about who manages them or what they're doing with them. Now let's try the mobile app: What's the encryption story there?

VPN 359

VPN Phishing DNS Encryption 359

Security Affairs

JULY 27, 2020

In December 2018, security experts from Trend Micro discovered that some machine-to-machine (M2M) protocols can be abused to attack IoT and industrial Internet of Things (IIoT) systems. According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.”.

DDOS 113

DDOS IoT Internet Internet 113

Security Affairs

OCTOBER 12, 2019

In August 2018, three members of the notorious cybercrime gang have been indicted and charged with 26 felony counts of conspiracy, wire fraud, computer hacking, access device fraud and aggravated identity theft. The messages sent to the victims were also dropping the backdoor DNSbot that primarily operates over DNS traffic.

Identity Theft 77

Identity Theft Hacking Advertising DNS 77

Security Affairs

AUGUST 7, 2019

group_b : from August 2017 to January 2018 3. group_c : from January 2018 to February 2018 4. T1094) mainly developed using DNS resolutions (which is actually one of the main characteristic of the attacker group). group_a : from 2016 to August 2017 2.

Computers and Electronics 81

Computers and Electronics Penetration Testing DNS Phishing 81

Security Affairs

AUGUST 20, 2019

Prior to April 2018, Silence’s target interests were primarily limited to 25 post-Soviet states and neighboring countries. Since the report “Silence: Moving into the darkside” was released in September 2018, Group-IB’s Threat Intelligence team has detected at least 16 new campaigns targeting banks launched by Silence.

Banking 58

Banking Cybercrime Cybersecurity Advertising 58

Fox IT

JANUARY 12, 2021

observed Q2 2017 Cobalt Strike v3.12, observed Q3 2018 Cobalt Strike v3.14, observed Q2 2019. The adversary compresses and encrypts the data by using WinRAR from the command-line. hp<password> = encrypt both file data and headers with password. The DNS-responses weren’t logged. m5 = use compression level 5.

VPN 68

VPN Accountability Passwords DNS 68

Security Affairs

DECEMBER 20, 2018

Security firms such as Proofpoint and Eset analyzed other samples of the same threat targeting the Australian landscape back in May 2018 and, more recently, in Italy. In the last weeks, a new variant of the infamous Danabot botnet hit Italy. Technical Analysis. Conclusion.

Banking 78

Banking Malware Internet Internet 78

eSecurity Planet

JUNE 8, 2023

It can be time consuming to establish these protocols on an organization’s DNS servers, but doing so will provide two key benefits. Email security tools offer features that screen emails for malicious content using antivirus, anti-spam, DNS, attachment, and other analytics.

Firewall 79

Firewall DNS Authentication Malware 79

Troy Hunt

JANUARY 10, 2018

agarwal_mohit) January 5, 2018. I think the URL is right but it seems inaccessible from other countries: [link] — Troy Hunt (@troyhunt) January 9, 2018. Security /= George blocking — Vatsalya Goel (@vatsalyagoel) January 9, 2018. — Khas Mek (@KhasMek) January 10, 2018. FergusInLondon) January 10, 2018.

Hacking 279

Hacking Government Risk Encryption 279

McAfee

SEPTEMBER 29, 2021

One vendor surveyed IT professionals at the RSA conference in 2018. Security investigators will use a multitude of data, threat intelligence, log files, DNS activity, and much more to identify the exact nature of the potential breach and determine the best response playbook to use. A Threat-Driven Approach to Prioritization.

DNS 67

DNS Manufacturing Data breaches Risk 67

SecureList

AUGUST 30, 2023

Since 2018, Lazarus has persistently targeted crypto-currency-related businesses for a long time, using malicious Word documents and themes related to the crypto-currency business to lure potential targets. This file actually contains multiple DoubleFinger components in encrypted form, which are used in subsequent stages of the attack.

Malware 73

Malware Spyware Cryptocurrency Government 73

SecureList

NOVEMBER 26, 2021

In June, more than six months after DarkHalo had gone dark, we observed the DNS hijacking of multiple government zones of a CIS member state that allowed the attacker to redirect traffic from government mail servers to computers under their control – probably achieved by obtaining credentials to the control panel of the victims’ registrar.

Malware 86

Malware Banking Energy and Utilities Accountability 86

IT Security Guru

APRIL 12, 2021

Or, for example using pimeyes to search out the sites showing images of the GRU agents who were active in Salisbury to poison Sergei and Yulia Skripal on 4 March 2018 which has discovered 786 results of related facial profiles. Fig 3 – Crossmatch Facial Recognition. Fig 4 – Secure OSINT Storage Drive. Conclusion.

Technology 54

Technology Penetration Testing Education DNS 54

Security Affairs

FEBRUARY 23, 2019

A user reported that its D-Link DNS-320 device was infected by malicious code. The D-Link DNS-320 model is no more available for sale, one of the members of the forum explained that the firmware of its NAS was never updated and its device was exposed to WAN through ports 8080, FTP port 21, and a range of ports for port forwarding.

Ransomware 91

Ransomware DNS Firmware Encryption 91

eSecurity Planet

MARCH 25, 2022

Between 2016 and 2018, the malware strain SamSam made brute force RDP attacks an integral part of its attacks on several public organizations. By exploiting weak server vulnerabilities, the Iran-based hackers were able to gain access, move laterally, encrypt IT systems, and demand ransom payment. clinical labs company September U.S.

VPN 120

VPN Software Authentication Encryption 120

SecureList

JANUARY 13, 2022

We reported about the first variant of such software back in 2018, but there were many other samples to be found, which was later reported by the US CISA (Cybersecurity and Infrastructure Security Agency) in 2021. After sending a beacon to the C2 server, the malware collects general system information, sending it after AES encryption.

Cryptocurrency 127

Cryptocurrency Malware Accountability Banking 127

eSecurity Planet

MAY 28, 2021

Ransomware: Encryption, Exfiltration, and Extortion. Ransomware perpetrators of the past presented a problem of availability through encryption. Detect Focus on encryption Assume exfiltration. Also Read: How to Prevent DNS Attacks. Also Read: Types of Malware | Best Malware Protection Practices for 2021. Old way New way.

Software 119

Software Firmware DNS VPN 119

eSecurity Planet

DECEMBER 17, 2021

In the Gartner Magic Quadrant for Cloud Access Security Brokers, Censornet was a Niche Player in 2017 and 2018. In the Gartner Magic Quadrant for Cloud Access Security Brokers, Forcepoint was a Niche Player in 2018 and 2019 before becoming a Visionary in 2020. Recognition for Censornet. Forcepoint. Recognition for Forcepoint.

Risk 141

Risk Firewall Authentication Encryption 141

SecureList

FEBRUARY 7, 2022

We have been tracking Roaming Mantis since 2018, and published five blog posts about this campaign: Roaming Mantis uses DNS hijacking to infect Android smartphones. Then, the encrypted payload is XORed using the embedded XOR key. Roaming Mantis dabbles in mining and phishing multilingually. Roaming Mantis, part III.

Phishing 81

Phishing DNS Mobile Malware 81

eSecurity Planet

DECEMBER 3, 2021

— Jack Daniel (@jack_daniel) October 10, 2018. jaysonstreet) March 3, 2018. If the US government dictating iPhone encryption design sounds ok to you, ask yourself how you'll feel when China demands the same. — Kevin Mitnick (@kevinmitnick) January 20, 2018. Jason Haddix | @JHaddix.

Accountability 139

Accountability Cybersecurity Penetration Testing InfoSec 139

Fox IT

JUNE 23, 2020

During 2018, Evil Corp had a short lived partnership with TheTrick group; specifically, leasing out access to BitPaymer for a while, prior to their use of Ryuk. WastedLocker aims to encrypt the files of the infected host. This is described in more detail in the String encryption section. WastedLocker Ransomware.

Ransomware 45

Ransomware Encryption Malware Architecture 45

Krebs on Security

JULY 3, 2023

However, searching passive DNS records at DomainTools.com for thedomainsvault[.]com In January 2019, Houzz acknowledged that a data breach exposed account information on an undisclosed number of customers, including user IDs, one-way encrypted passwords, IP addresses, city and ZIP codes, as well as Facebook information. 68.35.149.206).

Scams 232

Scams Business Services Accountability Marketing 232

Security Boulevard

AUGUST 12, 2022

The CA will issue challenges (DNS or HTTPS) requiring the agent to take an action that demonstrates control over said domain(s). Back in 2015, when Let’s Encrypt was was just emerging as a certificate-authority force, Josh Aas, the ISRG's executive director said that "Encryption should be the default for the web.

Encryption 52

Encryption DNS Backups Internet 52